Home / 42,922.76-64,388.32-13,332.64

Finding the Fourth Proportional to 42,922.76, 64,388.32 and 13,332.64

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Solution

The fourth proportional to 42,922.76, 64,388.32 and 13,332.64 is: 20,000.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,922.76 : 64,388.32 = 13,332.64 : x
  2. Step 2: Convert to fraction form
    42,922.76/64,388.32 = 13,332.64/x
  3. Step 3: Cross multiply
    42,922.76x = 64,388.32 × 13,332.64
  4. Step 4: Simplify right side
    42,922.76x = 858,466,290.76
  5. Step 5: Solve for x
    x = 858,466,290.76/42,922.76
  6. Step 6: Final answer
    x = 20,000.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.